The Using of Soft X-ray Radiation Created by a Nanosecond Sliding Discharge Plasma for Preionization of an Active Medium in Gas Lasers

This work is dedicated to a method for preionization of a laser medium (that is the most popular ones-CO 2 - and CO-lasers) using X-ray radiation created by a nanosecond sliding discharge (NSD). An experimental study has been carried out on the influence of the initial pressure and the composition o...

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Bibliographic Details
Published in:IEEE transactions on plasma science 2021-04, Vol.49 (4), p.1262-1267
Main Authors: Rybin, Y., Kalinin, N., Timshina, M.
Format: Article
Language:English
Subjects:
Argon
Bremsstrahlung
Carbon dioxide lasers
Carbon monoxide lasers
Discharge
Discharges (electric)
Electron density
Energy spectra
Free electron lasers
Free electrons
Gas lasers
Helium
Initial pressure
Ionization
Lasers
Photoelectrons
Photoionization
Plasma devices
Preionization
Radiation
Sliding
Soft x rays
surface discharge
Transmission line measurements
Voltage measurement
X-ray application
X-ray lasers
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Summary:This work is dedicated to a method for preionization of a laser medium (that is the most popular ones-CO 2 - and CO-lasers) using X-ray radiation created by a nanosecond sliding discharge (NSD). An experimental study has been carried out on the influence of the initial pressure and the composition of the gaseous medium on the intensity of X-ray bremsstrahlung. In order to estimate this intensity, a special sensor is used; it can measure free electron density that, in our, case is created during photoionization by X-ray radiation from an NSD. It is shown that in case an X-ray emitter is filled with argon, the photoelectron density in the vicinity of a cathode is about 15 times higher than in case the X-ray emitter is filled with helium. Moreover, when the gas volume of the X-ray emitter is filled with argon, the energy spectrum of the "runaway" electrons shifts to the region of lower values of their energy.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2021.3064215